Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados OceanDocs (1) Autor Abohweyere, P. O. (1) Palavra-chave Fishery statistics (1) Fishery surveys (1) Tipo do documento Report (1) Ano 1989 (1) País Belgium (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Stock assessment of the threadfin (Galeoides decadactylus) from the Nigerian inshore waters. OceanDocs Abohweyere, P. O.. Galeoides decadactylis is a commercially important species of the family polynemidae and constituted 10-20% by weight of the total landing of the trawl fishery in the 60s (Longhurst 1964a). Between 1971 and 1985 landing figures of the fish showed a fall of 7 – 8% by weight of total fish landed (FDF and NIOMR. 1986). Length frequency distribution showed the average size of fish landed by the commercial fishing company was 23.03cm while that of the Institute’s Research vessel was 18.89cm. Catch curve analysis showed that the fully exploited length ranged between 17 and 31cm. The length at infinity (Lx) obtained was 47.75cm while the growth coefficient (Z) was 0.20. Estimated total mortality (z) was 0.36. The stock size estimates was 10,090.54 tonnes,... Tipo: Report Palavras-chave: Fishery surveys; Fishery statistics. Ano: 1989 URL: http://hdl.handle.net/1834/2438 Registros recuperados: 1 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco